﻿package org.yoao.crm.struts.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.log4j.Logger;

public class LoginFilter implements Filter {
	private static final Logger log = Logger.getLogger(LoginFilter.class);

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
	}

	@Override
	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain chain) throws IOException, ServletException {
		try {
			HttpServletRequest request = (HttpServletRequest) arg0;
			HttpServletResponse response = (HttpServletResponse) arg1;
			if (request.getRequestURI().indexOf("/login.crm") > -1
					|| request.getRequestURI().indexOf("/mmlogin.crm") > -1) {
				chain.doFilter(arg0, arg1);
			} else {
				HttpSession httpSession = request.getSession();

				if (httpSession.getAttribute("userSession") == null) { // 未登录或登录超时
					String loginUrl = request.getScheme() + "://"
							+ request.getServerName() + ":"
							+ request.getServerPort()
							+ request.getContextPath() + "/login.jsp";
					response.getWriter().println(
							"<html><script>window.open('" + loginUrl
									+ "', '_top');</script></html>");
				} else {
					chain.doFilter(arg0, arg1);
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
	}
}